Optimizing images is the smartest way to boost site speed and search ranking....

https://wiki-square.win/index.php/The_Definitive_Guide:_Best_Image_Format_for_Logos_with_Transparency

Optimizing images is the smartest way to boost site speed and search ranking. Use descriptive filenames and helpful alt text for every upload. Before hitting publish, shrink your files with ShortPixel or TinyPNG